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In this paper, we give an explicit description of tropical cohomology of smooth algebraic varieties over trivially valued fields. We also construct ``monodromy weight'' spectral sequences for tropical cohomology of geometric strictly…

Algebraic Geometry · Mathematics 2025-07-23 Ryota Mikami

We construct a singular homology theory on the category of schemes of finite type over a Dedekind domain and verify several basic properties. For arithmetic schemes we construct a reciprocity isomorphism between the integral singular…

Number Theory · Mathematics 2007-07-30 Alexander Schmidt

We compute the $S_n$-equivariant rational homology of the tropical moduli spaces $\Delta_{2,n}$ for $n\leq 8$ using a cellular chain complex for symmetric $\Delta$-complexes in Sage.

Algebraic Geometry · Mathematics 2020-08-12 Claudia He Yun

We define two model structures on the category of bicomplexes concentrated in the right half plane. The first model structure has weak equivalences detected by the totalisation functor. The second model structure's weak equivalences are…

Algebraic Topology · Mathematics 2023-02-09 Fernando Muro , Constanze Roitzheim

Categorical aspects of the theory of modules over trusses were studied in recent years. The snake lemma and the nine lemma in categories of modules over trusses are formulated in this paper.

Representation Theory · Mathematics 2024-05-07 Yongduo Wang , Dengke Jia , Jian He , Dejun Wu

We generalize our previous work on categorification of Kauffman bracket skein module of surfaces, by extending our homology to tangles in cylinders over surfaces, F x [0,1]. Our homology of 0-tangles and 1-tangles in D^3 coincides (up to…

Quantum Algebra · Mathematics 2015-05-27 Marta M. Asaeda , Jozef H. Przytycki , Adam S. Sikora

We develop some algebraic structure notions such as composition series and convexity degree, along with some notions holding a geometric interpretation, like reducibility and hyperdimension, with the main objective being a tropical…

Algebraic Geometry · Mathematics 2014-08-21 Tal Perri , Louis Rowen

We study algebraic varieties parametrized by topological spaces and enlarge the domains of Lawson homology and morphic cohomology to this category. We prove a Lawson suspension theorem and splitting theorem. A version of Friedlander-Lawson…

Algebraic Geometry · Mathematics 2012-01-04 J. H. Teh

We present the rudiments of the Morita theory of module systems (over semirings), paralleling the classical Morita theory over associative rings.

Rings and Algebras · Mathematics 2019-03-07 Louis Rowen

Given a tropical variety X and two non-negative integers p and q we define homology group $H_{p,q}(X)$. We show that if X is a smooth tropical variety that can be represented as the tropical limit of a 1-parameter family of complex…

Algebraic Geometry · Mathematics 2020-12-09 Ilia Itenberg , Ludmil Katzarkov , Grigory Mikhalkin , Ilia Zharkov

We develop some aspects of the homological algebra of persistence modules, in both the one-parameter and multi-parameter settings, considered as either sheaves or graded modules. The two theories are different. We consider the graded module…

Algebraic Topology · Mathematics 2022-05-09 Peter Bubenik , Nikola Milicevic

The tropical semiring (R, min, +) has enjoyed a recent renaissance, owing to its connections to mathematical biology as well as optimization and algebraic geometry. In this paper, we investigate the space of labeled n-point configurations…

Combinatorics · Mathematics 2007-05-23 Mike Develin

Speyer recognized that matroids encode the same data as a special class of tropical linear spaces and Shaw interpreted tropically certain basic matroid constructions; additionally, Frenk developed the perspective of tropical linear spaces…

Algebraic Geometry · Mathematics 2023-03-03 Colin Crowley , Noah Giansiracusa , Joshua Mundinger

The prototypical examples of tropical compactifications are compactifications of complements of hyperplane arrangements, which posses a number of remarkable properties not satisfied by more general tropical compactifications of closed…

Algebraic Geometry · Mathematics 2024-11-25 Nolan Schock

Given a closed subvariety of an algebraic torus, the associated tropical variety is a polyhedral fan in the space of 1-parameter subgroups of the torus which describes the behaviour of the subvariety at infinity. We show that the link of…

Algebraic Geometry · Mathematics 2010-03-16 Paul Hacking

In this article we prove some theorems related to the triplets of triangles, homological two by two. These theorems will be used later to build triplets of triangles two by two tri-homological.

General Mathematics · Mathematics 2011-04-14 Ion Patrascu , Florentin Smarandache

As the dual notion of projective modules over trusses, injective modules over trusses are introduced. The Schanuel Lemmas on projective and injective modules over trusses are exhibited in this paper.

Representation Theory · Mathematics 2024-09-12 Yongduo Wang , Shujuan Han , Dengke Jia , Jian He , Dejun Wu

We prove the following "linkage" theorem: two p-regular graphs of the same genus can be obtained from one another by a finite alternating sequence of one-edge-contractions; moreover this preserves 3-edge-connectivity. We use the linkage…

Algebraic Geometry · Mathematics 2011-11-18 Lucia Caporaso

In this paper, we introduce homological structure theory of semirings and CP-semirings---semirings all of whose cyclic semimodules are projective. We completely describe semisimple, Gelfand, subtractive, and anti-bounded, CP-semirings. We…

Rings and Algebras · Mathematics 2015-09-11 S. N. Il'in , Y. Katsov , T. G. Nam

We study the asymptotic behaviour of tame harmonic bundles. First of all, we prove a local freeness of the prolongation by an increasing order. Then we obtain the polarized mixed twistor structure. As one of the applications, we obtain the…

Differential Geometry · Mathematics 2007-05-23 Takuro Mochizuki